If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom
@@lesclart is this where they changed it? Looking at the right bottom from the left eye, but the thing is the right oval balls double is inside the left eye lol
you're a hero. I'm an Engineer - with a masters degree (should have covered a lot of physics in my life time), however, I've never heard it explained simply enough. I love the content. I want to download the whole playlist but not sure how.
I'm not lying but this is the best channel I have ever seen, the lessons are explained simply better than in school, thank you so much I really love ur vids
watching this in 2024 for gcse but your comment is so true. i came across this guy who has like 1 hour 2 hour all you have to know for your this and that exam paper vids and he doesnt even pause in between sentences and its sooooo hard to understand and distinguish wether he is going on about a different thing or still the same thing. like why. can u not just pause for milli second at least. whats the point of going on with out even giving the brain a chancec to take it in do u know what i mean
thank you so much for this video, i have a test tomorrow and i’ve been binging ur videos for the past 2 hours. i’ve seen ur vids more than i’ve seen my parents. i’ll probably pass because u explain topics so well! thank you
I was searching for helpful physics videos for exams in a few weeks and I am so glad your videos popped up. They are lifesavers and extremely helpful. I am trying to cover the whole syllabus with the help of your videos. Thank you for these informative and easy to understand videos.
Physics and Chemistry often intersect when it comes to atoms, so it's essential in both sciences. GCSE exams, as @Tigress 007 said, have this in the syllabus for both Physics and Chemistry. Note that not everyone does Chemistry and not everyone does Physics, as some people drop one of them (or even both sometimes), so it's important that Cognito put it in both lists, so no-one misses out.
I love your videos they are so helpful - wish you could combine this one with the chemistry one though so it hits all the points on the P4 spec - such as specifically naming the size of an atom etc.
Thank you, unlike other videos where they read a paper while making the voice over and going really fast. I understood what took my teacher 2 lessons in 5 mins. So THANK YOU SOOOOOO MUCH
each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight electrons, the third shell can hold up to 18 and so on. the shells contain electrons around a nucleus and they're called electron configuration. each neutral atom has a number of electrons equal to its number of protons. so each periodic properties hold their own electron configuration (e.c.) ex: Xenon atoms have 54 electrons and the shell structure is 2.8.18.18.8. (btw you're supposed to add the numbers so 2 + 8 + 18 + 18 + 8 = 54
idk if my answer would help but hopefully it made sense and im new to this too so im not an expert or anything, i've just tried to help with what i've understood so forgive me if im wrong
Thanks for the breakdown! I need some advice: My OKX wallet holds some USDT, and I have the seed phrase. (air carpet target dish off jeans toilet sweet piano spoil fruit essay). What's the best way to send them to Binance?
Thank you for this. You really brought it all together for me. I'm in an online class which is just read, test. And there's something about hearing someone verbally put things into words that actually makes it make sense in a way that reading alone just cant.
@@bladeray1014 I failed 😢 but in my school we have two test and we have to pass one of the two test to pass the subject. I had the second test last week and I passed that one
I have been reading for hours on my course materials. I have watched this once and its so much clearer. Might have to watch it 2 more times to really grasp the concept, but your video has massively helped. Thank you!!!!
()idk if my answer is right cause in year 9 ) but from what I have learned,Protons can only be positively charged,electrons can only be negatively charged and neutrons are neutral Hope this helps Also I don’t think you’ll see this but anyways..
wait, for lithium-6, how is it an isotope? the nukleon number is 6, with the proton number 3. doesn't that mean both nutreon and proton numbers are 3? which is the same? am i missing sth pls help
Thanks i understood everything else such as electron shells except ions and isotopes because i wasn't at school and thanks to your video i understood what i missed, your videos help a lot!
Hello, your channel is amazing and has helped me throughout my o levels! Could you please explain the topic atomic structure for AS level chemistry please?!
@Dermmot Delaney That was rude what he said not gonna lie. Im top set everything so im clearly not dumb. But science isnt my favourite lesson. Doesnt mean someone is dumb just because we dont like science that much
Why has the ion become positive if the atom has more protons then electrons shouldn't it be negative because the number of protons and electrons are supposed to be the same?
it doesnt matter if its on the top or the bottom even the atomic mass can be at the top or bottom you just need to know that big number is atomic mass small number is atomic number
Clearing the mind before engaging with content allows for better concentration and retention of information. Rewinding and rewatching parts of a video that were not understood can reinforce learning, ensuring a thorough understanding of the material presented. This methodical approach to absorbing content can be beneficial for mastering complex subjects. All I am saying in simple terms is before you watch the vid clear your mind and then when watching the vid maybe slow it down to process information properly or rewind if you never understand a certain part. This ensures that you understand the vid and keep it in long term memory. I hope this helps : )
